/* roulang page: index */
:root {
      --primary: #059669;
      --primary-hover: #047857;
      --accent: #f97316;
      --bg-light: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #64748b;
      --border: #e2e8f0;
      --radius-card: 1rem;
      --shadow-soft: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
      --shadow-hover: 0 12px 25px -4px rgba(16, 185, 129, 0.15);
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #ffffff;
      line-height: 1.6;
    }
    .card-hover-effect {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .card-hover-effect:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .countdown-circle {
      stroke-dasharray: 283;
      stroke-dashoffset: 65;
      transform: rotate(-90deg);
      transform-origin: 50% 50%;
      transition: stroke-dashoffset 1s ease-in-out;
    }